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Wellington Region

Mangaone Stream at Ratanui

The Mangaone Stream is located on the steeply sloping western margin of the Tararua Range. With a catchment area of 53 square kilometres, the river flows in a westerly direction toward the Kāpiti Coast, and discharges  into the sea at Waikanae Beach.

Flow Data
Scientific data for this flow site
  • Live Flow Data
    Latest sample:
    Percentage of time flow exceeded
    High flowLess than 5%
    Elevated flow5% to 29%
    Normal flow30% to 69%
    Reduced flow70% to 94%
    Low flow95% to 100%
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    • Last 24 hours
    • Last 7 days
    • Last 30 days

    Key figures

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    Other notable measurements

    Droughts Month/Year Flow
    March 2003 0.061
    Floods Month/Year Flow
    October 1998 34
    June 2015 20